Lovely! What do you do to get these blue shades in the water and the sky. In my pics it goes to white

Usually the time of day and the right combo of shutter speed/aperture/iso... Time of day helps totally early morning or early evening, usually morning on some of these. I also look for the blue skies, if they are already blue, they usually stay blue... unless there's a cloud behind them...

The only other thing I sometimes do is if the sky isn't looking quite right, sometimes I'll change the style setting in post to landscape to help bring out some colors in the sky, and pull back some of the saturation that may get on the subject if it's too much. It doesn't always work but we have a lot of blue skies here in Florida, it's usually a pretty color in early morning...